Motion rotary type vehicle cleaning mechanism

By designing a combination of bracket, moving mechanism and cleaning mechanism, using the motor to drive the slider and rotary joint, the problem of uneven water spraying of existing vehicle cleaning mechanisms is solved, and the automatic cleaning and uniform water spraying effect of the vehicle is achieved.

CN223045712UActive Publication Date: 2025-07-01郑州伊莱特电子科技有限公司
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Patent Information

Application Number
CN202422167492.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-07-01
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

The existing sport rotary vehicle cleaning mechanism has a single structure, poor cleaning effect and uneven water spray.

Method used

A vehicle cleaning system including a bracket, a moving mechanism and a cleaning mechanism is designed. The movement and rotation of the nozzle are realized through the combination of the motor drive slider and a rotary joint. Combined with the water spraying action of the water pump, the vehicle is automatically cleaned and the rotation angle of the nozzle can be adjusted.

Benefits of technology

Automatic cleaning of the vehicle is achieved, uniform water spraying, better cleaning effect, and can effectively clean the sides and front end of the vehicle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223045712U_ABST
Patent Text Reader

Abstract

The utility model discloses a moving rotary type vehicle cleaning mechanism which comprises a support, a moving mechanism and a cleaning mechanism body. Sliding grooves are formed in the front inner wall and the rear inner wall of the upper end of the support; the moving mechanism comprises a sliding strip, the sliding strip is connected between the two sliding grooves in a sliding mode, a water tank is arranged at the upper end of the sliding strip, and a water inlet pipe is arranged at a water inlet in the upper end of the water tank; the cleaning mechanism comprises a first rotating joint, a first water pipe, a transfer box, a second rotating joint, a second water pipe and a spray head, the first rotating joint is rotationally connected to a water outlet in the lower end of the water tank, the first water pipe is arranged at a water outlet in the outer surface of the first rotating joint, the transfer box is arranged at the front end of the first water pipe, and the second rotating joint is rotationally connected to a water outlet in the lower end of the transfer box; according to the movable rotary type vehicle cleaning mechanism, automatic cleaning of a vehicle is achieved, meanwhile, the rotating angle of the spray head is convenient to adjust, and the cleaning effect on the vehicle is better.
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Description

Technical Field

[0001] The utility model relates to the technical field of moving and rotating vehicle cleaning, in particular to a moving and rotating vehicle cleaning mechanism. Background Technique

[0002] Automobile cleaning refers to the cleaning of the exterior of an automobile, which is a problem that every car owner or driver often faces. In recent years, car wash shops have gradually become a hot investment project in many large and medium-sized cities. The steps and operation methods during car washing are important precautions for car cleaning. Good car cleaning can play a very good maintenance effect on the car;

[0003] In some existing moving and rotating vehicle cleaning mechanisms, driven by a water pump, the water in the water tank is sprayed out from the nozzle through a water pipe.

[0004] The traditional moving and rotating vehicle cleaning mechanism has the following problems: the structure is single, the cleaning effect on the vehicle is not good, and the water spraying on the vehicle is uneven. Therefore, we propose a moving and rotating vehicle cleaning mechanism. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, provide a moving and rotating vehicle cleaning mechanism, realize automatic cleaning of the vehicle, and at the same time facilitate the adjustment of the rotation angle of the nozzle, and the cleaning effect on the vehicle is better, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a moving and rotating vehicle cleaning mechanism, including a bracket, a moving mechanism and a cleaning mechanism;

[0007] Bracket: The front and rear inner walls of its upper end are respectively provided with sliding grooves;

[0008] Moving mechanism: It includes a slide bar, the slide bar is slidably connected between the two sliding grooves, a water tank is provided at the upper end of the slide bar, and a water inlet pipe is provided at the water inlet of the upper end of the water tank;

[0009] Cleaning mechanism: It includes a rotary joint one, a water pipe one, a transfer box, a rotary joint two, a water pipe two and a nozzle. The lower end water outlet of the water tank is rotatably connected with a rotary joint one, a water pipe one is provided at the water outlet on the outer surface of the rotary joint one, a transfer box is provided at the front end of the water pipe one, the lower end water outlet of the transfer box is rotatably connected with a rotary joint two, a water pipe two is provided at the lower end water outlet of the rotary joint two, nozzles are evenly distributed on the outer wall of the water pipe two, and a support plate is provided at the lower front side of the transfer box;

[0010] Among them: It also includes a nozzle swing mechanism, and the nozzle swing mechanism is arranged at the lower end of the support plate to realize automatic cleaning of the vehicle, and at the same time facilitate the adjustment of the rotation angle of the nozzle, and the cleaning effect on the vehicle is better.

[0011] Furthermore, a control switch group is provided at the left end of the front side of the bracket. The input end of the control switch group is electrically connected to an external power supply to provide electrical connections for each electrical appliance.

[0012] Furthermore, the moving mechanism further includes a first motor, a lead screw, and a guide post. The lead screw is rotatably connected inside the front side chute, the guide post is fixedly connected inside the rear side chute, the threaded hole at the front end of the slider is threadedly connected to the lead screw, and the sliding hole at the rear end of the slider is slidably connected to the guide post. The first motor is arranged at the upper end of the right side of the bracket, the left end of the output shaft of the first motor is fixedly connected to the right end of the lead screw, and the input end of the first motor is electrically connected to the output end of the control switch group to provide moving drive.

[0013] Furthermore, the cleaning mechanism further includes a water pump. The water pump is arranged inside the water tank. The water outlet of the water pump is communicated with the water outlet at the lower end of the water tank. The input end of the water pump is electrically connected to the output end of the control switch group to provide water spraying drive.

[0014] Furthermore, the cleaning mechanism further includes a first gear, a second gear, a rotating shaft, and a second motor. The first gear is fixedly sleeved in the middle of the first rotary joint. The second motor is arranged at the lower end of the water tank. The lower end of the output shaft of the second motor is fixedly connected with a rotating shaft, and the lower end of the rotating shaft is fixedly connected with a second gear. The first gear is meshed with the second gear. The input end of the second motor is electrically connected to the output end of the control switch group for easy rotation.

[0015] Furthermore, the nozzle swing mechanism includes a connecting rod, a rotating rod, a toothed ring, a rack, and a fixed ring. The middle of the second rotary joint is fixedly connected with a fixed ring. The front end of the fixed ring is fixedly connected with a rack through a support rod. The upper end of the rotating rod is fixedly connected to the middle of the bottom wall of the support plate. The lower end of the rotating rod is rotatably connected with a connecting rod. The rear end of the connecting rod is fixedly connected with a toothed ring. The toothed ring is meshed with the rack. A sliding groove is formed in the middle of the connecting rod to realize the rotation of the nozzle.

[0016] Furthermore, the nozzle swing mechanism includes a third motor, a rotating column, a turntable, and a sliding column. The upper end of the rotating column is rotatably connected to the front side of the bottom wall of the support plate. The lower end of the rotating column is fixedly connected with a turntable. The edge of the turntable is fixedly connected with a sliding column. The surface of the sliding column is slidably connected with the sliding groove. The third motor is arranged at the upper end of the support plate. The lower end of the output shaft of the third motor is fixedly connected to the upper end of the rotating column. The input end of the third motor is electrically connected to the output end of the control switch group to provide nozzle rotation drive.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present moving and rotating vehicle cleaning mechanism has the following advantages:

[0018] 1. When cleaning a vehicle, park the vehicle at the lower end of the bracket. Then connect an external water source to the water inlet pipe and inject water into the interior of the water tank. Next, by adjusting the control switch group, the first motor, the water pump, and the second motor operate simultaneously. First, the water pump operates. The water pump pumps out the water inside the water tank. The water will pass through the first rotary joint and enter the first water pipe. The water will enter the transfer box through the first water pipe. Under the operation of the water pump, the water is pressed into the second water pipe from the transfer box and sprayed out from the nozzle. Then the first motor operates. The output shaft of the first motor drives the lead screw to rotate. The rotation of the lead screw will drive the threaded slider to slide to the right on the guide post, thereby driving the cleaning mechanism to move to the right, and then cleaning the side of the vehicle. Then when the cleaning mechanism moves to the front end of the vehicle, the second motor operates. The output shaft of the second motor drives the rotating shaft to rotate. The rotation of the rotating shaft will drive the second gear to rotate. The rotation of the second gear drives the meshing first gear to rotate. The rotation of the first gear will drive the second rotary joint to rotate, and then drive the first water pipe and the second water pipe to rotate to clean the front end of the vehicle, realizing automatic cleaning of the vehicle.

[0019] 2. Then, in order to better clean the vehicle, by adjusting the control switch group, the third motor operates. The output shaft of the third motor drives the rotating column to rotate. The rotation of the rotating column will drive the turntable to rotate. The rotation of the turntable will drive the sliding column to slide in the sliding groove. When the turntable rotates 90 degrees, the sliding column will drive the connecting rod to swing left and right under the rotating rod, thereby driving the toothed ring to mesh with the rack, and then driving the second water pipe to swing left and right under the rotation of the second rotary joint through the fixed ring, so as to achieve a better cleaning effect on the vehicle. At the same time, it is convenient to adjust the rotation angle of the nozzle, and the water spraying is more uniform, and the cleaning effect on the vehicle is better. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model;

[0021] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model;

[0022] Figure 3 It is a schematic left-side cross-sectional structural diagram of the present utility model;

[0023] Figure 4 It is a schematic enlarged structural diagram of part A of the present utility model;

[0024] Figure 5 It is a schematic enlarged structural diagram of part B of the present utility model.

[0025] In the figure: 1 bracket, 2 control switch group, 3 chute, 4 moving mechanism, 41 first motor, 42 lead screw, 43 guide post, 44 slide bar, 5 water tank, 6 water inlet pipe, 7 cleaning mechanism, 701 water pump, 702 first rotary joint, 703 first gear, 704 second gear, 705 rotating shaft, 706 second motor, 707 first water pipe, 708 adapter box, 709 second rotary joint, 710 second water pipe, 711 nozzle, 8 support plate, 9 nozzle swing mechanism, 91 third motor, 92 rotating column, 93 turntable, 94 sliding column, 95 connecting rod, 96 rotating rod, 97 toothed ring, 98 rack, 99 fixed ring. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-5 , this embodiment provides a technical solution: a moving and rotating vehicle cleaning mechanism, including a bracket 1, a moving mechanism 4 and a cleaning mechanism 7;

[0028] Bracket 1: The front and rear inner walls of its upper end are respectively provided with chutes 3. The left end of the front side of the bracket 1 is provided with a control switch group 2, and the input end of the control switch group 2 is electrically connected to an external power source;

[0029] Moving mechanism 4: It includes a slide bar 44. The slide bar 44 is slidably connected between the two chutes 3. The upper end of the slide bar 44 is provided with a water tank 5. The water inlet of the upper end of the water tank 5 is provided with a water inlet pipe 6. The moving mechanism 4 also includes a first motor 41, a lead screw 42 and a guide post 43. The lead screw 42 is rotatably connected to the inside of the front chute 3. The guide post 43 is fixedly connected to the inside of the rear chute 3. The threaded hole at the front end of the slide bar 44 is threadedly connected to the lead screw 42. The slide hole at the rear end of the slide bar 44 is slidably connected to the guide post 43. The first motor 41 is arranged at the upper end of the right side of the bracket 1. The left end of the output shaft of the first motor 41 is fixedly connected to the right end of the lead screw 42. The input end of the first motor 41 is electrically connected to the output end of the control switch group 2. Then the first motor 41 operates, and the output shaft of the first motor 41 drives the lead screw 42 to rotate. The rotation of the lead screw 42 will drive the threaded slide bar 44 to slide to the right on the guide post 43, thereby driving the cleaning mechanism 7 to move to the right, thereby cleaning the side of the vehicle;

[0030] Cleaning mechanism 7: It includes a first rotary joint 702, a first water pipe 707, an adapter box 708, a second rotary joint 709, a second water pipe 710, and a nozzle 711. A first rotary joint 702 is rotatably connected to the lower water outlet of the water tank 5. A first water pipe 707 is provided at the water outlet on the outer surface of the first rotary joint 702. The front end of the first water pipe 707 is provided with an adapter box 708. A second rotary joint 709 is rotatably connected to the lower water outlet of the adapter box 708. A second water pipe 710 is provided at the lower water outlet of the second rotary joint 709. Nozzles 711 are evenly distributed on the outer wall of the second water pipe 710. A support plate 8 is provided on the lower side of the front end of the adapter box 708. The cleaning mechanism 7 further includes a water pump 701. The water pump 701 is arranged inside the water tank 5. The water outlet of the water pump 701 is communicated with the water outlet at the lower end of the water tank 5. The input end of the water pump 701 is electrically connected to the output end of the control switch group 2. The cleaning mechanism 7 further includes a first gear 703, a second gear 704, a rotating shaft 705, and a second motor 706. The first gear 703 is fixedly sleeved on the middle part of the first rotary joint 702. The second motor 706 is arranged at the lower end of the water tank 5. The lower end of the output shaft of the second motor 706 is fixedly connected with a rotating shaft 705. The lower end of the rotating shaft 705 is fixedly connected with a second gear 704. The first gear 703 is meshed with the second gear 704. The input end of the second motor 706 is electrically connected to the output end of the control switch group 2. When cleaning a vehicle, the vehicle is parked at the lower end of the bracket 1. Then, an external water source is connected to the water inlet pipe 6, and water is injected into the water tank 5. Then, by adjusting the control switch group 2, the first motor 41, the water pump 701, and the second motor 706 operate simultaneously. First, the water pump 701 operates. The water pump 701 pumps the water inside the water tank 5. The water will pass through the first rotary joint 702 and enter the first water pipe 707. The water will enter the adapter box 708 through the first water pipe 707. Under the operation of the water pump 701, the water is pressed into the second water pipe 710 from the adapter box 708 and sprayed out from the nozzles 711. Then, the first motor 41 operates. The output shaft of the first motor 41 drives the lead screw 42 to rotate. The rotation of the lead screw 42 will drive the threaded slider 44 to slide to the right on the guide post 43, thereby driving the cleaning mechanism 7 to move to the right, and then cleaning the side of the vehicle. Then, when the cleaning mechanism 7 moves to the front end of the vehicle, the second motor 706 operates. The output shaft of the second motor 706 drives the rotating shaft 705 to rotate. The rotation of the rotating shaft 705 will drive the second gear 704 to rotate. The rotation of the second gear 704 drives the meshed first gear 703 to rotate. The rotation of the first gear 703 will drive the second rotary joint 709 to rotate, and then drive the first water pipe 707 and the second water pipe 710 to rotate to clean the front end of the vehicle;

[0031] Wherein: It further includes a nozzle swing mechanism 9. The nozzle swing mechanism 9 is arranged at the lower end of the support plate 8. The nozzle swing mechanism 9 includes a connecting rod 95, a rotating rod 96, a toothed ring 97, a rack 98 and a fixed ring 99. The middle of the rotary joint two 709 is fixedly connected with the fixed ring 99. The front end of the fixed ring 99 is fixedly connected with the rack 98 through a support rod. The upper end of the rotating rod 96 is fixedly connected to the middle of the bottom wall of the support plate 8. The lower end of the rotating rod 96 is rotatably connected with the connecting rod 95. The rear end of the connecting rod 95 is fixedly connected with the toothed ring 97. The toothed ring 97 is meshed with the rack 98. A sliding groove is formed in the middle of the connecting rod 95. The nozzle swing mechanism 9 includes a motor three 91, a rotating column 92, a turntable 93 and a sliding column 94. The upper end of the rotating column 92 is rotatably connected to the front side of the bottom wall of the support plate 8. The lower end of the rotating column 92 is fixedly connected with the turntable 93. The edge of the turntable 93 is fixedly connected with the sliding column 94. The surface of the sliding column 94 is slidably connected with the sliding groove. The motor three 91 is arranged at the upper end of the support plate 8. The lower end of the output shaft of the motor three 91 is fixedly connected with the upper end of the rotating column 92. The input end of the motor three 91 is electrically connected to the output end of the control switch group 2. Then, in order to better clean the vehicle, by adjusting the control switch group 2, the motor three 91 operates. The output shaft of the motor three 91 drives the rotating column 92 to rotate. The rotation of the rotating column 92 drives the turntable 93 to rotate. The rotation of the turntable 93 drives the sliding column 94 to slide in the sliding groove. When the turntable 93 rotates 90 degrees, the sliding column 94 drives the connecting rod 95 to swing left and right under the rotating rod 96, thereby driving the toothed ring 97 to mesh with the rack 98, and then driving the water pipe two 710 to swing left and right under the rotation of the rotary joint two 709 through the fixed ring 99, so as to achieve a better cleaning effect on the vehicle.

[0032] The working principle of a motion-rotary vehicle cleaning mechanism provided by the present utility model is as follows: When cleaning a vehicle, the vehicle is parked at the lower end of the bracket 1. Then, an external water source is connected to the water inlet pipe 6, and water is injected into the interior of the water tank 5. Then, by adjusting the control switch group 2, the first motor 41, the water pump 701, and the second motor 706 operate simultaneously. First, the water pump 701 operates. The water pump 701 pumps out the water inside the water tank 5. The water will pass through the first rotary joint 702 and enter the first water pipe 707. The water will enter the adapter box 708 through the first water pipe 707. Under the operation of the water pump 701, the water is pressed into the second water pipe 710 from the adapter box 708 and sprayed out from the nozzle 711. Then, the first motor 41 operates. The output shaft of the first motor 41 drives the lead screw 42 to rotate. The rotation of the lead screw 42 will drive the threaded slide bar 44 to slide to the right on the guide post 43, thereby driving the cleaning mechanism 7 to move to the right, and then cleaning the side of the vehicle. Then, when the cleaning mechanism 7 moves to the front end of the vehicle, the second motor 706 operates. The output shaft of the second motor 706 drives the rotating shaft 705 to rotate. The rotation of the rotating shaft 705 will drive the second gear 704 to rotate. The rotation of the second gear 704 drives the engaged first gear 703 to rotate. The rotation of the first gear 703 will drive the second rotary joint 709 to rotate, thereby driving the first water pipe 707 and the second water pipe 710 to rotate to clean the front end of the vehicle. Then, in order to better clean the vehicle, by adjusting the control switch group 2, the third motor 91 operates. The output shaft of the third motor 91 drives the rotating column 92 to rotate. The rotation of the rotating column 92 will drive the turntable 93 to rotate. The rotation of the turntable 93 will drive the sliding column 94 to slide in the sliding groove. When the turntable 93 rotates 90 degrees, the sliding column 94 will drive the connecting rod 95 to swing left and right under the rotating rod 96, thereby driving the toothed ring 97 to mesh with the rack 98, and then driving the second water pipe 710 to swing left and right under the rotation of the second rotary joint 709 through the fixing ring 99, thereby achieving a better cleaning effect on the vehicle.

[0033] It should be noted that, in the above embodiments, the first motor 41, the second motor 706, and the third motor 91 disclosed. The first motor 41 can be selected as D180M-O160030B-E, the second motor 706 can be selected as 5Ik12RGU-CF, and the third motor 91 can be selected as KS-370. The control switch group 2 is provided with switch buttons corresponding to the first motor 41, the water pump 701, the second motor 706, and the third motor 91 respectively for controlling their switch operations.

[0034] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A moving rotating vehicle cleaning mechanism, characterized in that: It comprises a support (1), a moving mechanism (4) and a cleaning mechanism (7); The bracket (1) has a front and rear inner wall at its upper end respectively provided with a slide groove (3); The moving mechanism (4) comprises a slide bar (44), wherein the slide bar (44) is slidably connected between the two slide grooves (3), a water tank (5) is provided at the upper end of the slide bar (44), and a water inlet pipe (6) is provided at the water inlet at the upper end of the water tank (5); A cleaning mechanism (7): comprising a rotary joint (702), a water pipe (707), a transfer box (708), a rotary joint (709), a water pipe (710) and a nozzle (711); the rotary joint (702) is rotatably connected to the water outlet at the lower end of the water tank (5); a water pipe (707) is provided at the water outlet on the outer surface of the rotary joint (702); a transfer box (708) is provided at the front end of the water pipe (707); a rotary joint (709) is rotatably connected to the water outlet at the lower end of the transfer box (708); a water pipe (710) is provided at the water outlet at the lower end of the rotary joint (709); nozzles (711) are evenly distributed on the outer wall of the water pipe (710); and a support plate (8) is provided at the lower side of the front end of the transfer box (708); Wherein: it also includes a nozzle swing mechanism (9), and the nozzle swing mechanism (9) is arranged at the lower end of the support plate (8).

2. A moving rotating vehicle cleaning mechanism according to claim 1, characterized in that: A control switch group (2) is provided at the left end of the front side surface of the bracket (1), and an input end of the control switch group (2) is electrically connected to an external power supply.

3. A moving rotary vehicle cleaning mechanism according to claim 2, characterized in that: The moving mechanism (4) further comprises a motor 1 (41), a screw rod (42) and a guide column (43); the screw rod (42) is rotatably connected to the interior of the front slide groove (3); the guide column (43) is fixedly connected to the interior of the rear slide groove (3); the threaded hole at the front end of the slide bar (44) is threadedly connected to the screw rod (42); the sliding hole at the rear end of the slide bar (44) is slidably connected to the guide column (43); the motor 1 (41) is arranged at the upper end of the right side surface of the bracket (1); the left end of the output shaft of the motor 1 (41) is fixedly connected to the right end of the screw rod (42); and the input end of the motor 1 (41) is electrically connected to the output end of the control switch group (2).

4. A moving rotary vehicle cleaning mechanism according to claim 2, characterized in that: The cleaning mechanism (7) further comprises a water pump (701), wherein the water pump (701) is arranged inside the water tank (5), a water outlet of the water pump (701) is connected to a water outlet at the lower end of the water tank (5), and an input end of the water pump (701) is electrically connected to an output end of the control switch group (2).

5. A moving rotary vehicle cleaning mechanism according to claim 4, characterized in that: The cleaning mechanism (7) further comprises a gear 1 (703), a gear 2 (704), a rotating shaft (705) and a motor 2 (706); the gear 1 (703) is fixedly sleeved on the middle part of the rotating joint 1 (702); the motor 2 (706) is arranged at the lower end of the water tank (5); the lower end of the output shaft of the motor 2 (706) is fixedly connected to the rotating shaft (705); the lower end of the rotating shaft (705) is fixedly connected to the gear 2 (704); the gear 1 (703) is meshedly connected to the gear 2 (704); and the input end of the motor 2 (706) is electrically connected to the output end of the control switch group (2).

6. A moving rotating vehicle cleaning mechanism according to claim 2, characterized in that: The nozzle swing mechanism (9) comprises a connecting rod (95), a rotating rod (96), a toothed ring (97), a rack (98) and a fixed ring (99); the middle part of the second rotating joint (709) is fixedly connected to the fixed ring (99); the front end of the fixed ring (99) is fixedly connected to the rack (98) via a support rod; the upper end of the rotating rod (96) is fixedly connected to the middle part of the bottom wall of the support plate (8); the lower end of the rotating rod (96) is rotatably connected to the connecting rod (95); the rear end of the connecting rod (95) is fixedly connected to the toothed ring (97); the toothed ring (97) is meshingly connected to the rack (98); and a sliding groove is provided in the middle part of the connecting rod (95).

7. A moving rotating vehicle cleaning mechanism according to claim 6, characterized in that: The nozzle swing mechanism (9) comprises a motor three (91), a rotating column (92), a rotating disk (93) and a sliding column (94); the upper end of the rotating column (92) is rotatably connected to the front side of the bottom wall of the support plate (8); the lower end of the rotating column (92) is fixedly connected to the rotating disk (93); the edge of the rotating disk (93) is fixedly connected to the sliding column (94); the surface of the sliding column (94) is slidably connected to the sliding groove; the motor three (91) is arranged at the upper end of the support plate (8); the lower end of the output shaft of the motor three (91) is fixedly connected to the upper end of the rotating column (92); and the input end of the motor three (91) is electrically connected to the output end of the control switch group (2).